1. Family: Eriocaulaceae Martinov
    1. Mesanthemum Körn.

      1. This genus is accepted, and its native range is Tropical Africa, Madagascar.

    [FTEA]

    Eriocaulaceae, Sylvia Phillips. Flora of Tropical East Africa. 1997

    Habit
    Perennials from a stout tough rhizome or rarely slender annuals (annuals confined to West Africa); leaves and scapes frequently hairy
    Leaves
    Leaves in a basal rosette, linear, spongy
    Scape
    Scapes few, unbranched, many-ribbed, arising from the leaf axils; sheaths obliquely slit, the limb acute
    Capitulum
    Capitulum globose or flattened; involucral bracts in several imbricate series, coriaceous with scarious margins, innermost sometimes radiating beyond the periphery of the white-hairy floral disc; floral bracts and flowers embedded in a woolly cushion of long receptacular hairs; floral bracts filiform with expanded hairy tips; flowers trimerous, pedicellate
    Flowers
    Male flowers: sepals usually membranous, oblanceolate-oblong, concave, free or basally connate; petals connate into a fleshy infundibular tube with shallowly 3-lobed upper margin and basal stipe, petal-bases sometimes free, forming slits in petal-tube, 3 epipetalous glands towards the top within; stamens 6, arising from base of petal-tube; anthers yellowish, exserted above the corolla-rim at anthesis, later retracted into petal-tube; vestigial gynoecium present Female flowers: sepals free, resembling the male sepals, caducous; petals free at the base around the ovary, connate above into a fleshy cylindrical tube or sometimes free to the middle, equalling or longer than the sepals, glabrous or villous both outside and within, 3 linear brownishglands inserted ± 2/3 up the inside, petal-tube thinner above level of gland insertion, densely white-pilose at tip
    Male
    Male flowers: sepals usually membranous, oblanceolate-oblong, concave, free or basally connate; petals connate into a fleshy infundibular tube with shallowly 3-lobed upper margin and basal stipe, petal-bases sometimes free, forming slits in petal-tube, 3 epipetalous glands towards the top within; stamens 6, arising from base of petal-tube; anthers yellowish, exserted above the corolla-rim at anthesis, later retracted into petal-tube; vestigial gynoecium present
    Female
    Female flowers: sepals free, resembling the male sepals, caducous; petals free at the base around the ovary, connate above into a fleshy cylindrical tube or sometimes free to the middle, equalling or longer than the sepals, glabrous or villous both outside and within, 3 linear brownishglands inserted ± 2/3 up the inside, petal-tube thinner above level of gland insertion, densely white-pilose at tip
    Seeds
    Seeds subglobose, brown, densely covered in white hair-like projections.

    Images

    Distribution

    Native to:

    Angola, Benin, Cameroon, Central African Repu, Congo, Equatorial Guinea, Gabon, Ghana, Guinea, Guinea-Bissau, Gulf of Guinea Is., Ivory Coast, Liberia, Madagascar, Malawi, Mali, Mozambique, Nigeria, Senegal, Sierra Leone, Tanzania, Uganda, Zambia, Zaïre, Zimbabwe

    Mesanthemum Körn. appears in other Kew resources:

    First published in Linnaea 27: 572 (1856)

    Accepted by

    • Govaerts, R. (2004). World Checklist of Monocotyledons Database in ACCESS: 1-54382. The Board of Trustees of the Royal Botanic Gardens, Kew.

    Literature

    Flora of West Tropical Africa
    • Ruhland in Engl., Pflanzenr. 4, 30: 117 (1903).
    • F.T.A. 8: 260
    • in Linnaea 27: 572 (1856)
    Flora of Tropical East Africa
    • Kimpouni in Fragm. Fl. Geobot. 39: 147–160 (1994)
    • Meikle in F.W.T.A., ed. 2, 3: 64 (1968)
    • H. Hess in Ber. Schweiz. Bot. Ges. 65: 178 (1955)
    • Jacq.-Fél. in Bull. Soc. Bot. Fr. 94: 143–151 (1947)
    • Ruhland in E.P. 4, 30: 117 (1903)
    • N.E. Br. in F.T.A. 8: 260 (1901)
    • in Linnaea 27: 572 (1856)

    Sources

    Flora of Tropical East Africa
    Flora of Tropical East Africa
    http://creativecommons.org/licenses/by-nc-sa/3.0

    Kew Backbone Distributions
    The International Plant Names Index and World Checklist of Selected Plant Families 2018. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
    © Copyright 2017 World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0

    Kew Names and Taxonomic Backbone
    The International Plant Names Index and World Checklist of Selected Plant Families 2018. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
    © Copyright 2017 International Plant Names Index and World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0